Abstract
Nanosized Fe3 − xZnxO4 powders were synthesized by co-precipitation and characterized by total chemical analysis, X-ray diffraction, magnetic susceptibility and Mössbauer spectroscopy. The results showed that, for x ≤ 0.15, the as-prepared samples are mostly zinc-substituted magnetites but have maghemite as a minor phase. For x ≥ 0.30, only the Fe3 − xZnxO4 solid solution is found. Increasing the zinc content from the end concentration x = 0, increases the lattice parameter but smaller become the mean crystalline diameter and the magnetic susceptibility. In addition, the magnetic hyperfine fields of the iron sites in the spinel structure, A and B, decrease up to collapse at x ≤ 0.90.
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da Costa, A.C.S., de Souza, I.G., Batista, M.A., da Silva, K.L., Bellini, J.V., Paesano, A. (2008). Structural, magnetic and hyperfine characterization of zinc-substituted magnetites. In: Larica, C., Mercader, R.C., Partiti, C., Gancedo, J.R. (eds) LACAME 2006. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85559-0_16
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DOI: https://doi.org/10.1007/978-3-540-85559-0_16
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